A woman prays to welcome dawn during the fire ceremony at the San Andres Archeological site in the town of Opico 32 Kms. west from San Salvador, El Salvador on December 22, 2012 at the end of the celebration of the Baktun 13. Jose CABEZAS/AFP/Getty Images

Photo: Jose Cabezas, AFP/Getty Images

A woman prays to welcome dawn during the fire ceremony at the San...

A woman prays to welcome dawn during the fire ceremony at the San... Photo-3932571.54258 - SFGate

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A snowboarder takes a run on December 22, 2012 at the Rosa Khutor Mountain Resort in Krasnaya Polyana outside the Russian Black Sea resort of Sochi. MIKHAIL MORDASOV/AFP/Getty Images

Photo: Mikhail Mordasov, AFP/Getty Images

A snowboarder takes a run on December 22, 2012 at the Rosa Khutor...

A snowboarder takes a run on December 22, 2012 at the Rosa Khutor... Photo-3932575.54258 - SFGate

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AVIEMORE, SCOTLAND - DECEMBER 22: Zac Brown, a reindeer herder at the Cairgorm Herd feeds the deer on December 22, 2012 in Aviemore, Scotland. Reindeer were introduced to Scotland in 1952 by Swedish Sami reindeer herder, Mikel Utsi. Starting with just a few reindeer, the herd has now grown in numbers over the years and is currently at about 130 by controlling the breeding. The herd rages on 2,500 hectares of hill ground between 450 and 1,309 meters and stay above the tree line all year round regardless of the weather conditions. (Photo by Jeff J Mitchell/Getty Images)

A bullet train attendant, center, checks her microphone while other attendants wait for invited journalists to board a CRH high-speed train at Beijing's West Railway Station, China, Saturday, Dec. 22, 2012. Chinese government invited journalists Saturday to board a bullet train for a test run on a part of Beijing-Guangzhou high-speed railway line, the world's longest high-speed rail line that is scheduled to open on Dec. 26, 2012. (AP Photo/Alexander F. Yuan)

Photo: Alexander F. Yuan, Associated Press

A bullet train attendant, center, checks her microphone while other...

An Egyptian elderly man shows his inked finger after casting his vote on the second round of a referendum on a disputed constitution drafted by Islamist supporters of President Mohammed Morsi in Fayoum, about 100 kilometers (62 miles) south of Cairo , Egypt, Saturday, Dec. 22, 2012.(AP Photo/Khalil Hamra)

Sri Lankan army cadets march during a graduation ceremony for some 157 Sri Lankan army officers, where Indian Army Chief General Bikram Singh attended as chief guest, in the island nation's central district town of Diyatalawa on December 22, 2012. General Singh is on a five-day official visit to Sri Lanka. Ishara S.KODIKARA/AFP/Getty Images

Photo: Ishara S.kodikara, AFP/Getty Images

Sri Lankan army cadets march during a graduation ceremony for some...

Sri Lankan army cadets march during a graduation ceremony for some... Photo-3932576.54258 - SFGate

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View of the Copahue volcano spewing ashes from Caviahue, Neuquen province, Argentina, some 1500 km southwest of Buenos Aires on December 22, 2012. The authorities of Chile and Argentina issued yellow alerts due to the eruption of the Copahue volcano, placed in the border between both countries. Antonio Huglich/AFP/Getty Images

An Indian student tries to hit a policeman with an iron rod during a protest in New Delhi, India, Saturday, Dec. 22, 2012. Police used tear gas and water cannons to push back thousands of people who tried to march to the presidential mansion to protest the recent gang rape and brutal beating of a 23-year-old student on a moving bus. (AP Photo/Altaf Qadri)

Photo: Altaf Qadri, Associated Press

An Indian student tries to hit a policeman with an iron rod during...

An Indian student tries to hit a policeman with an iron rod during... Photo-3932578.54258 - SFGate

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A man dressed in a Santa Claus costume chats on his cell phone as he works at a dog boutique where customer's dogs wearing Christmas costumes walk around in Lima, Peru, Saturday, Dec. 22, 2012. The pet boutique hired him for the Christmas holidays. (AP Photo/Martin Mejia)